Maybe having a quick FAQ section for people wondering what changed/where their scores went and put that at the top of the leaderboard?

Sth like

FAQ:

Why is a model from the old leaderboard no longer showing up?

Because of XXX; You can do YYY to bring it back.

Why did the scores of models change?

ZZZ

Where did the main MTEB leaderboard go?

Renamed to MTEB(eng, classic) etc etc

....